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Brass punch residue

Discussion in 'Gunsmithing' started by jadedragon, Mar 12, 2010.

  1. jadedragon

    jadedragon

    90
    1
    Jun 20, 2007
    California
    I bought a new brass punch set to help remove pins without damaging them but they do leave a brass smear on the pins. I tried several cleaning products to try to remove the brass smear with limited success. What should I try next?
     
  2. JohnKSa

    JohnKSa

    894
    1
    Sep 8, 2000
    DFW Area, TX
    Regular bore solvent and a toothbrush will usually take it off in my experience.
     


  3. eisman

    eisman ARGH! CLM

    2,579
    0
    Jul 28, 2002
    Moving Target
    I learned a long time ago to put a piece of masking tape on the end of a brass punch...
     
  4. PEC-Memphis

    PEC-Memphis Scottish Member

    5,114
    829
    Oct 19, 2006
    Doh ?
    You do realize that you should not "drive" Glock pins out (with a hammer) - they are pushed out and do not require significant force. The Glock tool is a steel pin. I use an allen wrench if I don't have a armorers tool handy.
     
    Last edited: Mar 12, 2010
  5. jadedragon

    jadedragon

    90
    1
    Jun 20, 2007
    California
    Thanks Memphis. I do know that bit of Glock maintenance fact. I'm using the punches for other firearms with snug pins. I thought to ask Glock Talk members this question knowing how knowledgeable you all are. Thanks for all the replys so far.
     
  6. BBJones

    BBJones

    1,173
    0
    Mar 2, 2010
    +1. I keep a big roll of blue painter's tape on my work bench that I use.

    Especially useful when trying to bang on or off some stubborn rear sights. I know, I know, I should buy one of those sight mounting devices.
     
  7. A little pencil lead on the pin before using the brass punch will prevent the brass marks; works when driving sights on/off as well.
    Regards,
    Greg
     
  8. Any bore solvent that is good at removing copper will also remove the brass smears, but depending on the solvent and type of finish that may not be practical. Usually some CLP and a rag will do it, though it may require a little elbow grease.
     
  9. eisman

    eisman ARGH! CLM

    2,579
    0
    Jul 28, 2002
    Moving Target
    I never liked that as it reduces friction and can make a punch slip.
     
  10. Hmmm,...interesting...never had it happen myself, but something to keep in mind: nothing wrong with a little extra caution. I always try to use a punch that gives the most contact area on the object being driven; larger/heavier punches seem to reduce bounce better as well.
    I do find masking tape good for protecting the surrounding areas.
    Regards,
    Greg.
     
    Last edited: Mar 26, 2010
  11. luscioman

    luscioman

    45
    0
    Mar 3, 2005
    FL
    buy nylon punches instead. They are really cheap and do not leave a mark. Downside is they are not as strong as brass.